The singer's hairstylist explains each look from her extreme ponytail to her soft beach waves.

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The Edgy, Extreme Ponytail

"For this look, her hair had been colored seafoam green the day before, so we braided it, put her blonde hair piece on top, and wrapped it in the pleather," explains Stuntz.

"I applied L'Oréal Professionnel Volume Expand Leave-In Spray and the L'Oréal Professionnel Mythic Oil for Color-Treated Hair to her wet hair, then dried her hair with a Mason Pearson brush and a Super Solano 33 Xtralite. Then, it was flat ironed with a SuperSolano sleek heat 450 1-inch iron evenly. I pulled Demi's hair up into a high pony tail at the crown of her head, fastened it tightly and finished the look by thoroughly brushing L'Oréal Professionnel Perfect Shimmer Spray through her tail."

Photo: Getty Images

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Sleek, Low Ponytail

"The second two looks were something that teens could easily duplicate at home. Simple, and fun!

I used a 1.25-inch super Solano Barrel Curling Iron to create waves throughout her hair, followed by an even spritzing of L'Oréal Professionnel Fresh Dust. I pulled back her hair tightly into a low ponytail at the base of her hairline by firmly brushing into a wound cinch and, again, finished with shimmer spray for ultimate shine and sleekness."

Photo: Getty Images

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Beach Waves

"I took Demi's hair out of ponytail and applied L'Oréal Professionnel Fresh Dust to infuse the body needed for her final look. Using L'Oréal Professionnel Infinium 2 Regular Hold Working Spray, finger waves in place maintaining a side part and finish with shimmer spray. For Demi's transition from her second to final look, I lightly curled her sleek ponytail using the 1.25-inch barreled iron from cheekbone level to ends allowing more of a tight curl at the ends for a slightly messy, disheveled look and locked ends with L'Oréal Professionnel Mythic Oil. Very rock and roll!"

The singer's hairstylist explains each look from her extreme ponytail to her soft beach waves.

Along with Glee's Kevin McHale, Demi hosted the 2012 Teen Choice Awards in style. Though her outfits stayed in the black and yellow color families, her hair did most of the transforming. She showed off her hairstyle range by taking her tresses from edgy and futuristic to romantic and flowing all in the course of an evening. Her hair started the night twisted back with a pleather tie with a long ponytail hair piece flowing out the end. From there, her hair was parted down the middle and pulled into a low ponytail. Out of it's binding, you could see that her hair had been dyed a seafoam green color. Finally, her hair is let loose in a cascade of waves for a natural, beachy look.

"Demi is such a dream to work with," says hairstylist Johnny Stuntz. "Her hair is so thick and healthy and she really likes to play around with it. She definitely has a pop star edge to her. We wanted to keep her haistyles pretty simple, young, cool, and chic!"

Find out how all three looks were created and shop Stuntz's product picks!